Home / 83,936.79-115,840.94-62,679.15

Finding the Fourth Proportional to 83,936.79, 115,840.94 and 62,679.15

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Solution

The fourth proportional to 83,936.79, 115,840.94 and 62,679.15 is: 86,503.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,936.79 : 115,840.94 = 62,679.15 : x
  2. Step 2: Convert to fraction form
    83,936.79/115,840.94 = 62,679.15/x
  3. Step 3: Cross multiply
    83,936.79x = 115,840.94 × 62,679.15
  4. Step 4: Simplify right side
    83,936.79x = 7,260,811,341.01
  5. Step 5: Solve for x
    x = 7,260,811,341.01/83,936.79
  6. Step 6: Final answer
    x = 86,503.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.